Patent US4718244A successfully refreshed from Google Patents.
US4718244A
Expired / Lapsed
US
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Air conditioner
Assignee: Nissan Motor Co Ltd
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Filing: 1986-02-11
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Granted: 1988-01-12
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Expires: 2006-02-11
Abstract
Abstract A first air conditioner is generally applied to a vehicle including a windshield and a passenger compartment having a front segment and a rear segment. The windshield faces the front segment of the passenger compartment. Air is injected into the front segment of the passenger compartment via a first duct. Air is injected into the rear segment of the passenger compartment via a second duct. A humidifier acts on the air injected into the rear segment of the passenger compartment via the second duct. In a second air conditioner, a humidifier can be selectively activated and deactivated. A temperature control arrangement responsive to activation and deactivation of the humidifier compensates for fluctuations in the temperature of air resulting from changes between activated and deactivated states of the humidifier.
Inventors
- 👤 Shigeru Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:40
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/32; B60H1/3204; B60H1/3205; B60H1/3207; B60S; B60S1/00; B60S1/02; B60S1/54
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
145 words
An air conditioner for a vehicle including a front windshield and a passenger compartment having a front and a rear segment, the front windshield defining at least part of the front segment of the passenger compartment, the air conditioner comprising: (a) first means for providing conditioned air into the front segment of the passsenger compartment; (b) second means for providing conditioned air into the rear segment of the passenger compartment; (c) third means for humidifying the conditioned air provided into the rear segment of the passenger compartment by the second means; (d) fourth means for selectively activating and deactivating the third means; and (e) fifth means, responsive to activation and deactivation of the fourth means, for compensating for variations in the temperature of the conditioned air provided by the second means, said temperature variations resulting from changes between activation and deactivation of the third means.
Claim 2
Dependent Claim
145 words
An air conditioner for a vehicle including a front windshield and a passenger compartment having a front and a rear segment, the front windshield defining at least part of the front segment of the passenger compartment, the air conditioner comprising: (a) first means for providing conditioned air into the front segment of the passsenger compartment; (b) second means for providing conditioned air into the rear segment of the passenger compartment; (c) third means for humidifying the conditioned air provided into the rear segment of the passenger compartment by the second means; (d) fourth means for selectively activating and deactivating the third means; and (e) fifth means, responsive to activation and deactivation of the fourth means, for compensating for variations in the temperature of the conditioned air provided by the second means, said temperature variations resulting from changes between activation and deactivation of the third means.
Claim 3
Dependent Claim
106 words
The air conditioner of claim 1, further comprising means for adjustably determining the temperature of the air injected by the second means, the temperature determining means comprising a heat exchanger having an inlet for admitting air into the heat exchanger, means for defining a passage bypassing the inlet, a movable air mix door adjustably blocking and unblocking the inlet and the bypass passage, wherein the ratio between the rates of air flows through the inlet and bypassing the inlet depends on the position of the door, and means for adjusting the position of the door in accordance with whether or not the third means is activated.
Claim 4
Dependent Claim
32 words
The air conditioner of claim 2, wherein the position adjusting means shifts the door toward a position inducing an increase in the temperature of the air when the third means is activated.
Claim 5
Dependent Claim
20 words
The air conditioner of claim 1, further comprising a vehicle console box enclosing a major part of the third means.
Claim 6
Dependent Claim
133 words
An air conditioner for a vehicle including a front window and a passenger compartment having a front and a rear segment, the front window defining at least part of the front segment of the passenger compartment, the air conditioner comprising: (a) first means for injecting air into the front segment of the passenger compartment; (b) second means for injecting air into the rear segment of the passenger compartment; and (c) means for humidifying the air injected into the rear segment of the passenger compartment by the second means, wherein some of the air from said first means is injected directly onto said front window, and further comprising means for cooling the air injected by the first means when the humidifying means is activated so as to prevent said front window from fogging up.
Claim 7
Dependent Claim
133 words
An air conditioner for a vehicle including a front window and a passenger compartment having a front and a rear segment, the front window defining at least part of the front segment of the passenger compartment, the air conditioner comprising: (a) first means for injecting air into the front segment of the passenger compartment; (b) second means for injecting air into the rear segment of the passenger compartment; and (c) means for humidifying the air injected into the rear segment of the passenger compartment by the second means, wherein some of the air from said first means is injected directly onto said front window, and further comprising means for cooling the air injected by the first means when the humidifying means is activated so as to prevent said front window from fogging up.
Claim 8
Dependent Claim
124 words
An air conditioner for a vehicle including a front window and a passenger compartment having a front and a rear segment, the front window defining at least part of the front segment of the passenger compartment, the air conditioner comprising: (a) first means for injecting air into the front segment of the passenger compartment; (b) second means for injecting air into the rear segment of the passenger compartment; (c) means for humidifying the air injected into the rear segment of the passenger compartment by the second means; and (d) means for defrosting a rear window of the vehicle, the defrosting means being activated when the humidifying means is activated, the rear window defining at least part of the rear segment of the passenger compartment.
Claim 9
Dependent Claim
124 words
An air conditioner for a vehicle including a front window and a passenger compartment having a front and a rear segment, the front window defining at least part of the front segment of the passenger compartment, the air conditioner comprising: (a) first means for injecting air into the front segment of the passenger compartment; (b) second means for injecting air into the rear segment of the passenger compartment; (c) means for humidifying the air injected into the rear segment of the passenger compartment by the second means; and (d) means for defrosting a rear window of the vehicle, the defrosting means being activated when the humidifying means is activated, the rear window defining at least part of the rear segment of the passenger compartment.
Claim 10
Dependent Claim
155 words
An air conditioner comprising: (a) means installed in a part of the air conditioner for humidifying air; (b) means for activating and deactivating said humidifying means; (c) means, responsive to activation and deactivation of the humidifying means, for compensating for variations in the temperature of the air resulting from changes between activation and deactivation of the humidifying means; (d) means for adjustably determining the temperature of the air, the temperature determining means comprising a heat exchanger having an inlet for admitting air into the heat exchanger; (e) means for defining a passage bypassing the inlet; (f) a movable air mix door adjustably blocking and unblocking the inlet and the bypass passage, wherein the ratio between the rates of air flowing through the inlet and bypassing the inlet depend on the position of the door; and (g) means for adjusting the position of the door in accordance with whether or not the humidifying means is actuated.
Claim 11
Dependent Claim
155 words
An air conditioner comprising: (a) means installed in a part of the air conditioner for humidifying air; (b) means for activating and deactivating said humidifying means; (c) means, responsive to activation and deactivation of the humidifying means, for compensating for variations in the temperature of the air resulting from changes between activation and deactivation of the humidifying means; (d) means for adjustably determining the temperature of the air, the temperature determining means comprising a heat exchanger having an inlet for admitting air into the heat exchanger; (e) means for defining a passage bypassing the inlet; (f) a movable air mix door adjustably blocking and unblocking the inlet and the bypass passage, wherein the ratio between the rates of air flowing through the inlet and bypassing the inlet depend on the position of the door; and (g) means for adjusting the position of the door in accordance with whether or not the humidifying means is actuated.
Claim 12
Dependent Claim
32 words
The air conditioner of claim 7, wherein the position adjusting means shifts the door toward a position inducing an increase in the temperature of the air when the humidifying means is activated.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-01-11 | 1991-07-13 | 1992-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-11 | 1995-07-13 | 1996-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-11 | 1999-07-13 | 2000-01-12 | $7700.00 | Window Closed / Lapsed |